Freelancers and independent contractors will usually get 1099 forms. If you work a side hustle, you may also have received a 1099, even if you work a traditional job.
A 1098 is another important form, especially if you have a mortgage or interest income from a savings account. You may also have a 1098-T if you or a dependent are in school.
Many individuals will fall into the single filing status. A lot of married couples file jointly, but you don’t have to. And if you own a home and have dependents, you can file as a head of household.